Spring-biased plug connector for connecting an electrical attachment cable to a mating plug connector of an electrical appliance
a technology of plug connector and attachment cable, which is applied in the direction of connection, electrical apparatus, coupling device connection, etc., can solve the problems of ageing and ageing
Active Publication Date: 2022-08-02
FESTOOL GMBH
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AI Technical Summary
Benefits of technology
The patent text describes a technical solution for supporting a spring element in a cable connector. The spring element is preferably not fully supported on the cable sleeve, but instead is only lightly supported on the plug housing. This is especially useful when the cable sleeve has a section that is resistant to bending, which can then support the spring element. The plug housing is also designed to have play, allowing for easier centering of the contact carrier when mating with another plug connector. This movement play is beneficial for ensuring the plug housing is securely positioned and can provide a stable connection.
Problems solved by technology
However, the cable sleeve is a plastic component, possibly a rubber component, which is subject to ageing tendencies, for example embrittlement.
Method used
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[0089]An electrical attachment system 5 according to the drawing comprises a plug connector 10, which is arranged on an end region of an attachment cable 15, on the other end of which an attachment plug 18, for example a so-called mains plug for 110 V, 230 V or similar is arranged. The attachment cable 15 comprises two conductors, in particular stranded wire ends 11, 12 which are assigned different potentials. However, the attachment plug 18 can be connected in different orientations to a power supply network EV, so that on the one hand one conductor 11, on the other hand the other conductor 12, for example, is in electrical connection with the phase, while the respective other conductor 12, 11 is in electrical connection with the neutral conductor of the power supply network EV or an attachment contact therefor. A third conductor could easily be provided as a protective conductor in the attachment cable 15.
[0090]The plug connector 10 has plug contacts 13, for example plug sockets, ...
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A plug connector for connecting an attachment cable to a mating plug connector of an electrical appliance in the form of a vacuum cleaner, wherein the plug connector has a contact carrier having plug contacts which are connected or connectable to the attachment cable and which can be brought into an electrical contact position with mating plug contacts of the mating plug connector by a plugging movement along a plug axis, wherein the contact carrier is received, in an axially movable manner with respect to the plug axis, in a plug housing which is mounted rotatably about the plug axis with respect to the contact carrier, wherein rotary form-fit contours are arranged on the plug housing and can be brought into form-fit engagement with mating rotary form-fit contours of the mating plug connector by a rotation movement of the plug housing about the plug axis with respect to the contact carrier, such that the plug connector is secured on the mating plug connector in a tension-resistant manner with respect to the plug axis, and wherein the plug connector has a cable sleeve for the attachment cable.
Description
[0001]This application claims priority based on an International Application filed under the Patent Cooperation Treaty, PCT / EP2019 / 058950, filed Apr. 9, 2019, which claims priority to DE 102018109411.6, filed Apr. 19, 2018.BACKGROUND OF THE INVENTION[0002]The invention relates to a plug connector for connecting an attachment cable to a mating plug connector of an electrical appliance in the form of a vacuum cleaner or an in particular mobile machine tool, wherein the plug connector has a contact carrier having plug contacts which are connected or connectable to the attachment cable and which can be brought into an electrical contact position with mating plug contacts of the mating plug connector by a plugging movement along a plug axis, wherein the contact carrier is received, in an axially movable manner with respect to the plug axis in a plug housing which is mounted rotatably about the plug axis with respect to the contact carrier, wherein rotary form-fit contours are arranged on...
Claims
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IPC IPC(8): H01R13/56H01R13/623H01R13/625
CPCH01R13/562H01R13/623H01R13/625
Inventor SCHÜSSLER, ERIKMOSTHAF, THOMASKNECHT, NICOLAI
Owner FESTOOL GMBH